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68 SS/RS, 468 BB 4 speed, 3.73 Posi, new paint, motor mods , trans and diff assembly. 2" Drop
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821 Posts
Discussion Starter · #1 ·
I have a 68 that is dropped 2" front, 1" rear. It currently has 15X8 3.75 back spacing American Racing VN 105 wheels (I believe theyre Torque Thrust D style). The fronts are 15X7 with same BS. I have rubbing issues in front when I hit a dip but not while turning with 225/60s, the rears stopped rubbing when I tossed the cheap CPP shocks and installed single adjustable QA1's running 255/60s, I am getting ready to replace C/A's and install coil overs too.
I had heard that on a Camaro 4-1/2" BS everything should fit fine with no issues, I see the rally wheels come in 4-1/2" BS but I want to stay with the TT style. I found some 15X8 with 4-1/2" BS through Summit but they dont have a 15X7 with that BS, so it got me to thinking of going with 15X8 all the way around. Can anyone say if that will fit and not hit frame or fenders in turns, or know a shop that has that information? Thanks in advance.
 

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1968 Van Nuys, L30M20, HP 327, TKO600, 12B-373, Deluxe Houndstooth
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27 Posts
So many variables could come into play...
On my 68 with 2" drop (26" from ground to bottom edge of fender) and stock steering knuckles I am running 17x8 rims with 4.5" BS, tires are 235-45/17 and I run about 1/2 degree neg camber in the alignment. No rubbing issues...
On a stock set-up with a basic 2 " drop 15x8 with 4.5 BS and a 225-60/15 tire should be fine...
 

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Premium Member
68 SS/RS, 468 BB 4 speed, 3.73 Posi, new paint, motor mods , trans and diff assembly. 2" Drop
Joined
·
821 Posts
Discussion Starter · #3 ·
Thanks. Im at 27" from ground to edge of wheel well in rear and 26-1/4 in front.
 

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Premium Member
68 SS/RS, 468 BB 4 speed, 3.73 Posi, new paint, motor mods , trans and diff assembly. 2" Drop
Joined
·
821 Posts
Discussion Starter · #4 ·
So many variables could come into play...
On my 68 with 2" drop (26" from ground to bottom edge of fender) and stock steering knuckles I am running 17x8 rims with 4.5" BS, tires are 235-45/17 and I run about 1/2 degree neg camber in the alignment. No rubbing issues...
On a stock set-up with a basic 2 " drop 15x8 with 4.5 BS and a 225-60/15 tire should be fine...
For S's & Giggles I swapped my rears (255/60 on 8" rim with 4.5 BS) to the fronts to see how they fit with turning lock to lock. The BS was fine and the calipers cleared with room to spare, but 255 definitely wont work on fronts. I remeasured the rims and the rears are 15x8 with 4.5 BS and fronts are 15x7 with 3.75 BS. 225's like you say and maybe even might be able to squeeze 235's on there. A little extra neg camber may tilt it in enough too. Think I will look into getting another pair of 15x8 with 4.5 BS for the fronts.
 

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1968 Van Nuys, L30M20, HP 327, TKO600, 12B-373, Deluxe Houndstooth
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27 Posts
I know of several other first gen camaros that are running 15x8 rims front and rear with no issues 4.25" thru 4.75" backspacing will usually work. A 275 rear tire width and a 245 front tire width are maximum in most cases...I run 235's on the front of my 68 and they dont rub at all...
Neg camber or a .250 wheel spacer are tools you can use to fine tune any slight rubbing issues. If spacers are used just make sure you have adequate thread engagement of lug nuts...longer studs are sometimes needed. Especially when going from a steel wheel to an aluminum wheel. A good 1/2" of thread engagement at least! More is better.
 
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